SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Recent Accounting Pronouncements Adopted) (Narrative) (Details) - USD ($)		12 Months Ended
		Aug. 31, 2020	Aug. 31, 2019	Aug. 31, 2018	Aug. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease liability	[1],[2]	$ 132,775,000
Operating lease right-of-use assets, net		119,533,000
Cumulative effect of accounting change for the adoption of ASU 2016-09		832,732,000	$ 798,279,000	$ 758,638,000	$ 708,767,000
Foreign currency exposure		35,500,000
Cumulative Effect Of Accounting Changes [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease liability			132,100,000
Operating lease right-of-use assets, net			$ 120,600,000
Cumulative effect of accounting change for the adoption of ASU 2016-09		$ 0

[1] Future minimum lease payments include $0.6 million of lease payment obligations for the prior leased Miami distribution center. For the purposes of calculating the minimum lease payments, a reduction is reflected for the actual sub-lease income the Company expects to receive during the remaining lease term. This sub-lease income was also considered, for the purposes of calculating the exit obligation, which was immaterial as of August 31, 2020.

[2] Operating lease obligations have been reduced by approximately $0.9 million to reflect expected sub-lease income. Certain obligations under leasing arrangements are collateralized by the underlying asset being leased.